{
  config,
  lib,
  ...
}: let
  cfg = config.roles.gaming;
in {
  config = lib.mkIf cfg.steam.enable {
    arta.unfree.allow = [
      "steam-run"
      "steam-original"
      "steam"
    ];

    nixpkgs.config.packageOverrides = pkgs: {
      steam = pkgs.steam.override {
        extraPkgs = pkgs:
          with pkgs; [
            # For gamescope to work properly:
            # https://github.com/NixOS/nixpkgs/issues/162562#issuecomment-1523177264
            xorg.libXcursor
            xorg.libXi
            xorg.libXinerama
            xorg.libXScrnSaver
            libpng
            libpulseaudio
            libvorbis
            stdenv.cc.cc.lib
            libkrb5
            keyutils

            # Fallback fonts (e.g. for Don't Get Lost).
            liberation_ttf
          ];
      };
    };

    programs.steam = {
      enable = true;
      remotePlay.openFirewall = false;
      dedicatedServer.openFirewall = false;
    };
    hardware.steam-hardware.enable = true;
  };
}